Acetone → 2-(3,5-Dibromothiophen-2-yl)propan-2-ol

HRID 23464

반응식

HRID 23464 반응식
Br[C:2]1[S:3][C:4]([Br:8])=[CH:5][C:6]=1[Br:7].CCCCCC.[Li]CCCC.[CH3:20][C:21]([CH3:23])=[O:22]>CCOCC>[Br:7][C:6]1[CH:5]=[C:4]([Br:8])[S:3][C:2]=1[C:21]([OH:22])([CH3:23])[CH3:20]

참가 물질

6

반응물 4

HCID 180AcetoneHCID 8058HexaneHCID 76592Thiophene, 2,3,5-tribromo-HCID 178418339Butyllithium

생성물 1

HCID 225727272-(3,5-Dibromothiophen-2-yl)propan-2-ol

시약·촉매·용매 1

HCID 3283Diethyl Ether용매

실험 절차

A solution of 2,3,5-tribromothiophene (8.17 g, 25 mmol) in Et2O (N2 atmosphere) was cooled to −78° C. and treated with a 1.6 M hexane solution of nBuLi (15.6 mL, 25 mmol). The mixture was then stirred for 10 minutes, then treated with acetone (1.84 mL, 25 mmol). The mixture was then stirred for 30 minutes and quenched with H2O. The mixture was extracted with Et2O; the organic layers were combined, dried (MgSO4), and the solvent removed in vacuo. The residue was filtered through a plug of silica gel (gradient elution from hexanes to EtOAc) to provide the title compound.

후처리

  1. stirringThe mixture was then stirred for 30 minutes
  2. customquenched with H2O
  3. extractionThe mixture was extracted with Et2O
  4. dry with materialdried (MgSO4)
  5. customthe solvent removed in vacuo
  6. filtrationThe residue was filtered through a plug of silica gel (gradient elution from hexanes to EtOAc)

출처 및 근거

ORD 기록
ord-eddf34b407b548debb99d9803b0c57a1
출처 데이터셋
uspto-grants-2005_02
특허 번호
US06852711B2

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